On Jan 15, 2018, at 9:10 AM, david wrote:
>
> - SATA3 is faster than USB3 (I think)
Almost always, yes.
> But sometimes one has no choice.
Only if you have no PCI slots, and hence can’t put a better interface into the
system.
> The Mac pro may look cute in its black cylinder, for example, bu
Warren
Thanks for the thoughts. Even with 'dmesg', I
found nothing. The reboot got rid of the problem
and it continues to run perfectly in the same configuration.
I, too, have a slight dislike for external USB
disks, and much prefer internal drives for esveral reasons:
- Internal drives are
On Jan 15, 2018, at 8:57 AM, Warren Young wrote:
>
> Whenever I have a machine with an unkillable userspace program, I run dtrace
Sorry, got my OS wires crossed: I mean dmesg. Though dtrace could help, too,
if you’ve managed to build that for CentOS; I hear it can be dnoe. :)
On Jan 12, 2018, at 3:18 PM, david wrote:
>
> Or is it related to the annoying spin-down and spin-up delay of external USB
> disks.
More likely, crap hardware, which is awfully hard to avoid in USB-land.
Just the other day, I traced a machine that failed to reboot to an external USB
disk. Un
John--
Thanks for the suggestion. I finally had a chance to get to the
system in question, It was the only one of many that exhibited the
USB hang. I tried a reboot with the two USB disks
disconnected. Everything worked. I plugged them in, and then did
both "lsusb -v" and "lshw", and agai
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